Does VOCSN offer a stand-by mode? Follow VOCSN does not offer a stand-by mode at this time. Related articles How long does it take to recharge the batteries if they are completely depleted? What configurations of VOCSN are available? Can VOCSN run off of a generator? How Do I Use Leak Compensation? How can I filter the exhaled gas from the Ventec One-Circuit™ (single limb)?